Antimicrobial function of Nd3+-doped anatase titania-coated nickel ferrite composite nanoparticles: A biomaterial system

Titania–silver and alumina–silver composite nanoparticles: Novel, versatile synthesis, reaction mechanism and potential antimicrobial application

“…As an excellent adsorbent, TiO 2 also enjoys a vast range of potential applications in photocatalysis [4][5][6], photovoltaics [7,8] and water splitting [9], either in its pristine form or as a composite with a variety of nanoparticles. Noble metals including Au [19] and Ag [20,21], magnetic particles such as Ni [22] and ferrites [23], quantum dots [24], hydroxyapatites [25] and various oxides (e.g. alumina [26], zirconia [27], silica [28] and NiO [29]) have been successfully incorporated on titania particles, rods, wires or mesh-like structures.…”

Characterization and Photonic Effect of Novel Ag-CNT/TiO2Composites and their Bactericidal Activities

“…The application of a promising route for destroying bacteria can be founded upon the basic principles and studies reported in the literature. 35,36 As confirmed by bactericidal tests, the Ag-CNT/TiO2 showed microbicidal effects and strong antibacterial activity against the strain used. Solar disinfection with Ag-CNT/TiO2 composites is a consequence of both the direct action of the light on the microorganisms and the photocatalytic action of the photo-induced electron (e -) accepted by the CNT from the sunlight.…”

CVD Elaboration of Nanostructured TiO2‐Ag Thin Films with Efficient Antibacterial Properties

“…This includes, for instance, conventional chemical or physical surface cleaning as well as high-technology surface treatments such as silver ion implantation, [9,10] silver composite thin films, [11][12][13] TiO 2 under UV radiation, [14][15][16] polymer films containing triclosan, [17] quaternary ammonium salts, [18,19] and UV-activated core-shell composite nanoparticles which can be sprayed onto solid surfaces, including the human body. [20][21][22] Some major disadvantages of the above solutions are the complexity and the high cost of the fabrication process, as well as the use of UV radiation to activate the anti-bacterial behavior when TiO 2 is involved. [21,23] Triclosan is widely used as anti-microbial agent in various polymers, however it has three major disadvantages: (i) some bacteria resistances have been detected; [24] (ii) it diffuses into the environment, which reduces the long term efficiency of the anti-bacterial effect of the surface; and (iii) it can react with other chemical compounds (e.g., free chlorine in drinking water [25,26] ), which can be dangerous to health.…”

“…Core/ shell TiO 2 -NiFe 2 O 4 composite nanoparticles are an example of this strategy. [20][21][22] The TiO 2 -Ag composite coating is an attractive solution because it combines the anti-bacterial properties of Ag nanoparticles with the photocatalytic activity of the TiO 2 matrix. Furthermore, silver doping can enhance the photocatalytic property of TiO 2 when small quantities are incorporated, [32] or when it is deposited on the surface of the film.…”